Broadcom 3392 Page
: It allows Tier 1 and Tier 2 operators to offer "fiber-like" speeds over coax, delaying massive capital expenditures required for full DOCSIS 4.0 or fiber overbuilds.
Though the BCM3392 does not appear on Broadcom's public-facing product page, the chip is already being integrated into commercial hardware by top-tier Original Design Manufacturers (ODMs):
As adoption increases throughout 2025 and 2026, the BCM3392 will likely become the standard for high-performance cable modems worldwide.
The BCM3392 is a DOCSIS 3.1+ cable modem SoC that pushes the limits of existing hybrid fiber-coaxial (HFC) networks. Built as a bridge between the current widely deployed DOCSIS 3.1 standard and the next-generation DOCSIS 4.0, this chip allows cable operators to provide using their current network equipment. broadcom 3392
The Broadcom 3392 is not a general-purpose computing chip; it is a highly specialized telecommunications processor. It represents an optimal solution for cable operators and manufacturers looking to deliver a using existing infrastructure.
The chip’s most notable feature is its support for the advanced physical layer (PHY) technologies introduced with DOCSIS 3.1. Primarily, this includes for the downstream and Orthogonal Frequency Division Multiple Access (OFDMA) for the upstream. Compared to the older single-carrier QAM (Quadrature Amplitude Modulation) used in DOCSIS 3.0, OFDM/OFDMA is vastly more spectrum-efficient and resilient to the noise and interference endemic to coaxial cable plants. The BCM3392’s dedicated hardware accelerators perform the complex Fast Fourier Transforms (FFTs) and equalization necessary to decode OFDM symbols in real time, enabling it to bond up to 32 downstream channels and 8 upstream channels, with a theoretical total capacity exceeding 3 Gbps downstream and over 1 Gbps upstream.
technology in new customer premises equipment (CPE), such as the Vantiva CGA 438A Light Reading Strategic Significance : It allows Tier 1 and Tier 2
: It acts as a critical bridge, allowing users to experience near-next-gen speeds on existing DOCSIS 3.1 networks that have been upgraded with new software.
The primary technical differentiator of the BCM3392 is its ability to support . This is double the two-channel support of its predecessor, the BCM3390.
Announced a full portfolio of data modems and gateways powered by the BCM3392. Built as a bridge between the current widely
Broadcom BCM3392 is an upgraded DOCSIS 3.1 cable modem chipset designed to "stretch" the capabilities of existing network infrastructures. It is a key component of what the industry often refers to as DOCSIS 3.1+ or "DOCSIS 3.1 Extended". Light Reading Key Informative Features Enhanced Downstream Capacity:
Broadcom, called the BCM3392, It buys us time to provide the faster services that customers are looking for." Light Reading DOCSIS 3.1+ gets ready to roll - Light Reading
| Feature | BCM3382 (DOCSIS 3.0) | BCM3392 (DOCSIS 3.1) | BCM3395 (DOCSIS 3.1 + 4x4 Wi-Fi) | |-----------------------|----------------------|----------------------|-----------------------------------| | Downstream bonding | 32x8 SC-QAM | 32x8 + 1x OFDM | 32x8 + 2x OFDM (full spec) | | CPU | Dual-core MIPS | Dual-core ARM A7 | Quad-core ARM A7 or A53 | | Ethernet ports | 4x GbE | 4x GbE | 4x GbE + 2.5G or 10G uplink | | Integrated Wi-Fi | No | No | Yes (4x4 802.11ac Wave 2) |